Ship bottom profile measuring device for ship in-dock inspection
By designing a bottom shape measuring device including linear drive parts, slider components, test wheels and cameras, the problem of difficulty in detecting small wear on the bottom of the ship and small area of the coating in the prior art is solved, and a comprehensive and accurate detection of the bottom shape of the bottom is achieved.
Patent Information
- Application Number
- CN202520142384.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2035-01-22
AI Technical Summary
It is difficult to fully detect problems such as tiny wear on the bottom of the ship, small area of coating and aging during the inspection of existing ships. Traditional thickness measurement equipment cannot effectively detect these subtle abnormalities.
Design a bottom shape measuring device for ship dock inspection, including support components, linear drive components, slider components, assembly frames, test wheels, pressing components, displacement detection components and cameras. The slider assembly is driven to move through the linear drive member, so that the test wheel rolls along the bottom of the ship, and data is collected by combining the shift detection member and the camera to achieve a comprehensive inspection of the shape of the bottom of the ship.
The device can effectively detect subtle abnormalities such as tiny wear on the bottom of the ship, small area of coating, and aging, improve the accuracy and comprehensiveness of the detection, and overcome the shortcomings of traditional equipment's inability to detect subtle problems.
Smart Images
Figure CN222784091U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of ship dry dock detection, and in particular relates to a ship bottom shape measuring device for ship dock inspection. Background Art
[0002] With the rapid development of the global shipping industry, the safety of ships has received increasing attention. In the process of ship construction and maintenance, ship bottom inspection is a key link to ensure the structural integrity and navigation performance of the ship. Traditional ship bottom measurement mainly relies on visual inspection, and inspectors conduct ship inspections by observing the bottom of the ship in the dry dock. However, this visual inspection method is not only inefficient, but also greatly affected by human factors. In order to overcome the above problems, thickness measuring equipment has been introduced in the prior art to improve the convenience and accuracy of detection, but these devices still have the following shortcomings.
[0003] First, thickness gauges can usually only detect obvious deformation and severe wear of the ship's bottom, as well as large-area coating shedding and bubbles. As for minor wear on the ship's bottom and small-area coating defects, thickness gauges are often powerless. Secondly, thickness gauges usually use test wheels to inspect the ship's bottom. When the test wheel rolls against the ship's bottom, it changes height. By detecting its height change, it measures whether there is an abnormality on the ship's bottom. Deformation, wear, coating shedding and defects on the ship's bottom can all lead to abnormal height changes on the test wheel. In addition, conditions such as aging and discoloration of the ship's bottom coating are difficult to detect with traditional equipment. It can be seen that in the existing ship dock inspection process, it is urgent to design a comprehensive ship bottom shape measurement device that can inspect. Utility Model Content
[0004] The purpose of the utility model is to provide a device for measuring the bottom shape of a ship for inspection in a ship dock in order to solve the above-mentioned problem.
[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:
[0006] A ship bottom shape measuring device for ship dock inspection includes a support assembly arranged in the dock, a linear drive member is arranged on the support assembly, a slider assembly is arranged on the output shaft of the linear drive member, an assembly frame is slidably arranged on one side of the slider assembly, and a test wheel is arranged on the top of the assembly frame, a pressing member is arranged between the slider assembly and the assembly frame, the pressing member is used to press the assembly frame so that the test wheel on the assembly frame is close to the ship bottom, the slider assembly is provided with a displacement detection member for detecting the relative displacement between the assembly frame and the slider assembly, and a camera for collecting ship bottom image information. After the ship lands on the dock pier, the inspection work is carried out. During the inspection, the ship bottom shape measuring device is moved to the bottom of the ship. At this time, the test wheel is against the ship bottom. The slider assembly is driven to move linearly by the linear drive member, so that the test wheel rolls along the ship bottom. The height of the test wheel and the assembly frame changes with the height of the ship bottom. The pressing member provides an upward support force to the assembly frame and the test wheel, so that the test wheel is close to the ship bottom. During the movement of the slider assembly, the height change of the test wheel is measured by the displacement detection part on the slider assembly. The height change of the test wheel is the height change of the bottom of the ship located in the inspection station area. At the same time, the image information of the bottom of the ship is collected by the camera, so that the inspector can analyze the abnormal condition of the bottom of the ship by combining the image information and the height change information of the test wheel.
[0007] As a further optimization scheme of the present invention, the slider assembly includes a slider body and two connecting seats fixed on one side of the slider body; the assembly frame is composed of a bottom plate, a top plate and two connecting rods fixed between the bottom plate and the top plate, and the two connecting seats are respectively sleeved on the outside of the two connecting rods.
[0008] As a further optimization solution of the present invention, the pressing member is a spring arranged between the connecting seat and the bottom plate.
[0009] As a further optimization solution of the utility model, the displacement detection member includes an encoder embedded in the slider body, and a gear fixed on the rotating shaft of the encoder, and a rack meshing with the gear is fixed on the bottom plate.
[0010] As a further optimization solution of the present invention, a locking piece is provided on the rack, and the locking piece is used to fix the rack and the slider body together in a non-measuring state.
[0011] As a further optimization scheme of the utility model, the linear drive component includes a linear guide rail, a motor fixed to one end of the linear guide rail, and a screw rod fixed to the output shaft of the motor. The slider body is slidably arranged on one side of the linear guide rail, and the screw rod is threadedly connected to the slider body.
[0012] As a further optimization scheme of the utility model, the support assembly includes a support plate, a pillar fixed on one side of the support plate, a telescopic component hinged to the other side of the support plate, and two mounting platforms respectively hinged to the top of the pillar and the telescopic component, and the two ends of the linear guide rail are respectively fixed on the two mounting platforms.
[0013] The beneficial effects of the utility model are:
[0014] During the inspection process, the utility model moves the bottom shape measuring device to the bottom of the ship, makes the test wheel abut against the bottom of the ship, drives the slider assembly to move linearly through the linear drive member, provides an upward support force to the assembly frame and the test wheel through the pressing member, makes the test wheel roll close to the bottom of the ship, and measures the height change of the test wheel through the displacement detection member on the slider assembly. At the same time, the image information of the bottom of the ship is collected through the camera, so that the inspector can analyze the abnormal condition of the bottom of the ship by combining the image information and the height change information of the test wheel. For the minor wear and tear and small area loss and aging of the coating that are difficult to detect with the test wheel, the inspector can conduct a comprehensive analysis by combining the image information;
[0015] The utility model uses a spring as a pressing member to press the assembly frame upwards so that the test wheel is closely attached to the bottom of the ship, and transmits the displacement of the test wheel to the encoder through the gear rack transmission structure. In order to extend the service life of the measuring device, during the non-measurement period, the assembly frame and the slider assembly are fixed together through a locking member to prevent the spring from being fatigued due to being in a stretched state for a long time. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 It is a schematic diagram of the structure of the slider assembly of the utility model;
[0018] Figure 3 yes Figure 2 The enlarged view of point A in the middle;
[0019] Figure 4 It is a schematic diagram of the working state of the linear drive member of the utility model when it is tilted.
[0020] In the figure: 1. support assembly; 2. linear drive member; 3. slider assembly; 4. assembly frame; 5. test wheel; 6. pressing member; 7. displacement detection member; 8. camera; 9. locking member; 11. support plate; 12. pillar; 13. telescopic member; 14. mounting table; 15. positioning member; 21. linear guide; 22. motor; 23. screw rod; 31. slider body; 32. connecting seat; 33. guide wheel; 41. bottom plate; 42. top plate; 43. connecting rod; 71. encoder; 72. gear; 73. rack. DETAILED DESCRIPTION
[0021] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.
[0022] Example 1
[0023] like Figure 1-3 As shown, a device for measuring the bottom shape of a ship for inspection in a ship dock comprises a support assembly 1 arranged in the dock, a linear drive 2 is arranged on the support assembly 1, a slider assembly 3 is arranged on the output shaft of the linear drive 2, an assembly frame 4 is slidably arranged on one side of the slider assembly 3, and a test wheel 5 is arranged on the top of the assembly frame 4, a pressing member 6 is arranged between the slider assembly 3 and the assembly frame 4, and the pressing member 6 is used to press the assembly frame 4 so that the test wheel 5 on the assembly frame 4 is close to the bottom of the ship, and a displacement detection member 7 for detecting the relative displacement between the assembly frame 4 and the slider assembly 3 is arranged on the slider assembly 3, and a camera 8 for collecting image information of the bottom of the ship. Before measuring the bottom of the ship, the ship enters the dock, and when the ship reaches the top of the dock pier, the dock is drained to form a dry dock environment, so that the ship can land smoothly on the dock pier. Then the inspection work is carried out.
[0024] During the inspection, the bottom shape measuring device is moved to an inspection station under the ship. At this time, the test wheel 5 is against the bottom of the ship. The linear drive member 2 drives the slider assembly 3 to move linearly, so that the test wheel 5 rolls along the bottom of the ship. The height of the test wheel 5 and the assembly frame 4 changes with the height of the bottom of the ship. The pressing member 6 provides an upward support force to the assembly frame 4 and the test wheel 5, so that the test wheel 5 is close to the bottom of the ship. During the movement of the slider assembly 3, the displacement detection member 7 on the slider assembly 3 measures the height change of the test wheel 5. The height change of the test wheel 5 is the height change of the bottom of the ship in the inspection station area. At the same time, the camera 8 collects the image information of the bottom of the ship, so that the inspector can analyze the abnormal condition of the bottom of the ship at the inspection station in combination with the image information and the height change information of the test wheel 5. Then, according to the above process, multiple inspection stations are measured in turn, so as to measure the bottom of the ship as a whole.
[0025] Specifically, Figure 2 and Figure 3As shown, the slider assembly 3 includes a slider body 31 and two connecting seats 32 fixed on one side of the slider body 31. The assembly frame 4 is composed of a bottom plate 41, a top plate 42 and two connecting rods 43 fixed between the bottom plate 41 and the top plate 42. The two connecting seats 32 are respectively sleeved on the outside of the two connecting rods 43. The pressing member 6 is a spring arranged between the connecting seat 32 and the bottom plate 41. The displacement detection member 7 includes an encoder 71 embedded in the slider body 31, and a gear 72 fixed on the rotating shaft of the encoder 71. A rack 73 meshing with the gear 72 is fixed on the top of the bottom plate 41. The slider body 31 is provided with a mounting groove corresponding to the encoder 71, and the encoder 71 is fixed in the mounting groove. A locking member 9 is provided on the rack 73. The locking member 9 is used to fix the rack 73 and the slider body 31 together in a non-measuring state so that the spring remains in a natural state. The locking member 9 is preferably a threaded fastener, and a threaded tube corresponding to the threaded fastener is fixed on one side of the slider body 31. In addition, in some other embodiments, the threaded fastener may also be replaced by a positioning pin.
[0026] The linear drive member 2 includes a linear guide rail 21, a motor 22 fixed to one end of the linear guide rail 21, and a screw rod 23 fixed to the output shaft of the motor 22. A slider body 31 is slidably arranged on one side of the linear guide rail 21, and the screw rod 23 is threadedly connected to the slider body 31. A guide wheel 33 is provided on the side of the slider body 31 away from the assembly frame 4, and an annular groove is provided on the guide wheel 33. A guide rod corresponding to the annular groove of the guide wheel 33 is provided on the linear guide rail 21. A controller electrically connected to the motor 22 is also provided on the support assembly 1, and a wireless signal transmission module is provided on the slider body 31. The encoder 71 sends the information it collects to the controller through the wireless signal transmission module, and the controller is also connected to a display to display the linear displacement information of the test wheel 5 and the image information collected by the camera 8.
[0027] The linear drive member 2 drives the screw rod 23 to rotate through the motor 22, and drives the slider body 31 to move along the linear guide rail 21 through the screw rod 23. When the test wheel 5 rolls along the bottom of the ship, the assembly frame 4 changes in height as the height of the bottom of the ship changes. When the height of the assembly frame 4 changes, the rotating shaft of the encoder 71 is driven to rotate by a corresponding angle through the rack 73 and the gear 72. The controller obtains the linear displacement information of the assembly frame 4 and the test wheel 5 according to the angular displacement information collected by the encoder 71, and the linear displacement information can be obtained according to the angular displacement information and the diameter change information of the gear 72. The above information acquisition process is common knowledge in this field and will not be described in detail. The controller presents the linear displacement information and image information through the display so that the inspector can conduct a comprehensive analysis of the abnormal conditions of the bottom of the ship.
[0028] Also, see Figure 4The support assembly 1 includes a support plate 11, a pillar 12 fixed on one side of the support plate 11, a telescopic component 13 hinged on the other side of the support plate 11, and two mounting platforms 14 respectively hinged on the pillar 12 and the top of the telescopic component 13. The two ends of the linear guide 21 are respectively fixed on the two mounting platforms 14. The telescopic component 13 is preferably a telescopic rod. The telescopic rod includes a sleeve and a support rod slidably arranged inside the sleeve. A positioning member 15 is provided on the sleeve. The positioning member 15 is preferably a bolt. The sleeve and the support rod are both provided with screw holes corresponding to the bolts. The sleeve is provided with a plurality of screw holes from top to bottom, and the sleeve is fixed to the support rod by bolts. In the process of measuring the bottom of the ship, the length of the telescopic component 13 can be adjusted by adjusting the depth of the support rod embedded in the sleeve, so that the linear drive member 2 is tilted to adapt to the parts of the bottom of the ship with different tilt angles. In addition, in some other embodiments, the telescopic component 13 can also be replaced by a cylinder, a hydraulic cylinder, an electric cylinder, or other components with telescopic ability.
[0029] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.
Claims
1. A device for measuring the bottom shape of a ship for inspection in a dock, comprising a support assembly (1) arranged in the dock, characterized in that: The support assembly (1) is provided with a linear drive member (2), an output shaft of the linear drive member (2) is provided with a slider assembly (3), a mounting frame (4) is slidably provided on one side of the slider assembly (3), and a test wheel (5) is provided on the top of the mounting frame (4), a pressing member (6) is provided between the slider assembly (3) and the mounting frame (4), the pressing member (6) is used to press the mounting frame (4) so that the test wheel (5) on the mounting frame (4) is closely attached to the bottom of the ship, and a displacement detection member (7) for detecting the relative displacement between the mounting frame (4) and the slider assembly (3) and a camera (8) for collecting image information of the bottom of the ship are provided on the slider assembly (3).
2. The ship bottom shape measuring device for ship dock inspection according to claim 1, characterized in that: The slider assembly (3) comprises a slider body (31) and two connecting seats (32) fixedly arranged on one side of the slider body (31); the assembly frame (4) comprises a bottom plate (41), a top plate (42) and two connecting rods (43) fixedly arranged between the bottom plate (41) and the top plate (42); the two connecting seats (32) are respectively sleeved on the outside of the two connecting rods (43).
3. The ship bottom shape measuring device for ship dock inspection according to claim 2, characterized in that: The pressing member (6) is a spring arranged between the connecting seat (32) and the bottom plate (41).
4. The ship bottom shape measuring device for ship dock inspection according to claim 3, characterized in that: The displacement detection member (7) comprises an encoder (71) embedded in the slider body (31), and a gear (72) fixedly arranged on the rotating shaft of the encoder (71), and a rack (73) meshing with the gear (72) is fixedly arranged on the bottom plate (41).
5. The ship bottom shape measuring device for ship dock inspection according to claim 4, characterized in that: A locking piece (9) is provided on the rack (73), and the locking piece (9) is used to fix the rack (73) and the slider body (31) together in a non-measuring state.
6. The ship bottom shape measuring device for ship dock inspection according to claim 2, characterized in that: The linear drive component (2) comprises a linear guide rail (21), a motor (22) fixedly mounted at one end of the linear guide rail (21), and a screw rod (23) fixedly mounted on an output shaft of the motor (22); the slider body (31) is slidably mounted on one side of the linear guide rail (21); and the screw rod (23) is threadedly connected to the slider body (31).
7. The ship bottom shape measuring device for ship dock inspection according to claim 6, characterized in that: The support assembly (1) comprises a support plate (11), a support column (12) fixedly mounted on one side of the support plate (11), a telescopic component (13) hingedly mounted on the other side of the support plate (11), and two mounting platforms (14) respectively hingedly mounted on the top of the support column (12) and the telescopic component (13), wherein both ends of the linear guide rail (21) are respectively fixedly mounted on the two mounting platforms (14).